项目启动之后，操作都很正常，大概过了5分钟左右。就会报错。因为我每访问一次都会去redis中获取当前登录的用户信息。然后就出现错误了。debug看了下，发现redis可以正常获取到数据，但是执行valueFromBytes()出错了。

FstSerializer.valueFromBytes().

具体报错信息如下:

java.lang.RuntimeException: java.io.IOException: java.lang.RuntimeException: unknown object tag -19
at com.jfinal.plugin.redis.serializer.FstSerializer.valueFromBytes(FstSerializer.java:78)
at com.jfinal.plugin.redis.Cache.valueFromBytes(Cache.java:1211)
at com.jfinal.plugin.redis.Cache.get(Cache.java:91)
at com.chinatwse.wineage.commons.tools.ToolCache.get(ToolCache.java:47)
at com.chinatwse.wineage.core.admin.service.AdministratorService.getCache(AdministratorService.java:130)
at com.chinatwse.wineage.core.admin.service.AdministratorService$$FastClassByCGLIB$$88570c08.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at com.jfinal.aop.Invocation.invoke(Invocation.java:80)
at com.jfinal.aop.Callback.intercept(Callback.java:85)
at com.chinatwse.wineage.core.admin.service.AdministratorService$$EnhancerByCGLIB$$863c200f.getCache(<generated>)
at com.chinatwse.wineage.core.interceptor.AuthAdminInterceptor.getCurrAdministrator(AuthAdminInterceptor.java:285)
at com.chinatwse.wineage.core.interceptor.AuthAdminInterceptor.intercept(AuthAdminInterceptor.java:65)
at com.jfinal.aop.Invocation.invoke(Invocation.java:67)
at com.jfinal.core.ActionHandler.handle(ActionHandler.java:74)
at com.chinatwse.wineage.manage.handler.ManageHandler.handle(ManageHandler.java:69)
at com.jfinal.core.JFinalFilter.doFilter(JFinalFilter.java:72)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:670)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2508)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2497)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
2016-12-21 16:27:12[ERROR]-[Thread: http-apr-8081-exec-4]-[com.jfinal.core.ActionHandler.handle()]: /modules/custom/announce?v=4.0
java.lang.RuntimeException: java.io.IOException: java.lang.RuntimeException: unknown object tag -19
at com.jfinal.plugin.redis.serializer.FstSerializer.valueFromBytes(FstSerializer.java:78)
at com.jfinal.plugin.redis.Cache.valueFromBytes(Cache.java:1211)
at com.jfinal.plugin.redis.Cache.get(Cache.java:91)
at com.chinatwse.wineage.commons.tools.ToolCache.get(ToolCache.java:47)
at com.chinatwse.wineage.core.admin.service.AdministratorService.getCache(AdministratorService.java:130)
at com.chinatwse.wineage.core.admin.service.AdministratorService$$FastClassByCGLIB$$88570c08.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at com.jfinal.aop.Invocation.invoke(Invocation.java:80)
at com.jfinal.aop.Callback.intercept(Callback.java:85)
at com.chinatwse.wineage.core.admin.service.AdministratorService$$EnhancerByCGLIB$$863c200f.getCache(<generated>)
at com.chinatwse.wineage.core.interceptor.AuthAdminInterceptor.getCurrAdministrator(AuthAdminInterceptor.java:285)
at com.chinatwse.wineage.core.interceptor.AuthAdminInterceptor.intercept(AuthAdminInterceptor.java:65)
at com.jfinal.aop.Invocation.invoke(Invocation.java:67)
at com.jfinal.core.ActionHandler.handle(ActionHandler.java:74)
at com.chinatwse.wineage.manage.handler.ManageHandler.handle(ManageHandler.java:69)
at com.jfinal.core.JFinalFilter.doFilter(JFinalFilter.java:72)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:670)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2508)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2497)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: java.lang.RuntimeException: unknown object tag -19
at org.nustaq.serialization.FSTObjectInput.readObject(FSTObjectInput.java:243)
at com.jfinal.plugin.redis.serializer.FstSerializer.valueFromBytes(FstSerializer.java:75)
... 33 more
Caused by: java.lang.RuntimeException: unknown object tag -19
at org.nustaq.serialization.FSTObjectInput.instantiateSpecialTag(FSTObjectInput.java:430)
at org.nustaq.serialization.FSTObjectInput.readObjectWithHeader(FSTObjectInput.java:360)
at org.nustaq.serialization.FSTObjectInput.readObjectFields(FSTObjectInput.java:701)
at org.nustaq.serialization.FSTObjectInput.instantiateAndReadNoSer(FSTObjectInput.java:555)
at org.nustaq.serialization.FSTObjectInput.readObjectWithHeader(FSTObjectInput.java:370)
at org.nustaq.serialization.FSTObjectInput.readObjectInternal(FSTObjectInput.java:327)
at org.nustaq.serialization.FSTObjectInput.readObject(FSTObjectInput.java:307)
at org.nustaq.serialization.FSTObjectInput.readObject(FSTObjectInput.java:241)
... 34 more

请大神帮我看下...非常感谢